Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://smidgel.ru/uplcv?utm_term=undertale+omega+flowey+fight+simulator PDF link annotation

  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16142954c5361b---38451334294.pdfIn PDF document text
  • https://architektor.ru/uploads/file/refofi.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/vubakudaxetivomidimigu.pdfIn PDF document text
  • https://towa-aaa.jp/userfiles/file/fepokuzusizotixadulugafub.pdfIn PDF document text
  • http://addon-colsman.somantec.net/ckfinder/userfiles/files/76447171827.pdfIn PDF document text
  • http://smflow.in/admin/uploads/file/rirewitetanoja.pdfIn PDF document text
  • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5de97c2af---4856485132.pdfIn PDF document text
  • http://gabident.pl/local/userfiles/file/xiduxofuvibu.pdfIn PDF document text
  • http://global-leasing-management.com/uf/file/xakutepuxonizesigap.pdfIn PDF document text
  • https://medbioplast.com/klucharnet/images/file/buweriketixe.pdfIn PDF document text
  • http://pfmconsulting.org/survey/userfiles/files/kelekolatudosamodir.pdfIn PDF document text
  • http://sanfrancescovet.com/userfiles/files/wesivomifilopofutiwut.pdfIn PDF document text
  • https://n-v-v.dk/userfiles/file/xidobiga.pdfIn PDF document text
  • http://sherwoodchambergolf.com/ckfinder/userfiles/files/sozosixarefalubibizu.pdfIn PDF document text
  • https://dpt-mh.com/uploads/news/files/38190458518.pdfIn PDF document text
  • http://wangyiphk.com/userfiles/16635476947.pdfIn PDF document text
  • http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/40106322167.pdfIn PDF document text
  • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/8eec640a910f1b41e1432f8ead1a73bb/batefawifofafepode.pdfIn PDF document text
  • http://ukicda.com/admin/fckeditor_upfiles/file/2021090615054580554.pdfIn PDF document text
  • https://keluargamimpi2.com/contents/files/popetebu.pdfIn PDF document text
  • http://noithatsah.com/webroot/img/files/zapefidaponavu.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140422394530---68805418837.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/doratimojolenasabip.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/sekagojafomerad.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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